To run unit tests:

1. Make sure that PHPUnit is installed by running:

   $ composer install
   

2. Install WordPress and the WP Unit Test lib using the install.sh script:

   $ tests/bin/install.sh <db-name> <db-user> <db-password> [db-host] [wp-version] [skip-database-creation]
   

You may need to quote strings with backslashes to prevent them from being processed by the shell or other programs.

Then, to run the tests: $ composer run test